Answer:
Sources of nitrogen from human activities, such as electric power generation, industry, transportation and agriculture, can upset the natural balance of nitrogen in the environment. When fossil fuels are burned, they release nitrogen oxides into the atmosphere, which contribute to the formation of smog and acid rain.
Which of the following mixtures forms a solution?
A. melting ice
B.
sand and water
C. boiling water
D. alcohol in water
Answer:
D. alcohol in water
Explanation:
All the other answers do not form a solution. Melting ice, as well as boiling water, is still pure water. Sand and water are two different substances, however, sand does not dissolve in water to create a homogeonous solution, leaving alcohol and water, which DO combine into a homogeonous solution.
Please answer correctly and quickly
Answer:
C.
Explanation:
3. In a food web which organisms are decomposers?
These are usually multicellular animals such as earthworms, crabs, slugs, vultures, etc.
Hope it helps![tex] \huge\color{purple}{보라 해}[/tex]Briefly describe ANY environmental condition that affects photosynthesis.
Answer:
Light intensity
Explanation:
without enough light a plant cannot photosynthesise very quickly even if there is plenty of water and carbon dioxide
Which of the following describes an impact of floods on ecosystems?
Answer:
Soil erosion.
Explanation:
Soil erosion is the impact of floods on ecosystems because the floods moves very fast which takes soil with itself. Due to soil erosion, the productive layer of the soil or the layer in which nutrients are present are eroded which has a negative impact on the plants due to unavailability of nutrients. The floods moves very fast and the soil has no the ability to hold its particle tightly which leads to erosion of the soil that negatively affected the ecosystem.
Who is known as the father of Natural selection?
Answer:
Darwin's theory.
Explanation:
How are the Hawaiian honeycreepers an example of adaptive radiation?
There were a large variety of honeycreepers that first inhabited the island. They found many different niches, so they were all able to survive.
The honeycreepers that first inhabited the island were able to adapt as the island changed, so that population of birds was able to survive.
There was a diversification of honeycreepers (each with different beak shapes) to help fill various ecological niches.
Answer: In adaptive radiation, many different species evolve from a single ancestor species. Each new species evolves to exploit a different niche, such as food source. In the example above, Hawaiian honeycreepers evolved a range of bill forms in response to available food sources on the Hawaiian archipelago. The honeycreepers dispersed from one founder species, and evolved in response to natural selection based on different food sources in their isolated habitats provided by water. Seed-eating birds evolved thick, short beaks.
Need help ASAP! Will mark brainliest;) No links please, will report
Which represents a misuse of antibiotics which could lead to antibiotic resistant?
A. Finishing the antibiotic prescription even if you are feeling better days before the prescription ends.
B. Physicians prescribing antibiotics to treat influenza (virus)
C. Taking antibiotics only when a bacterial infection is present
D. Physicians prescribing antibiotics to treat strep throat (bacteria)
Answer:
Bacteria and fungi are germs found inside and outside of our bodies. ... Antibiotics are critical tools for preventing and treating infections caused by specific bacteria in people, animals, ... How can taking antibiotics contribute to antibiotic resistance? ... Never pressure your doctor to prescribe an antibiotic.
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Explanation:
19. What is Chemical weathering?
Answer:
Explanation: Chemical weathering is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. These reactions occur particularly when the water is slightly acidic.
PLEASE HELP
A student i studying several species that belong to the plant kingdom. Which two are most closely related
A Fermaldia pandurata and Ficus pandurata
B Castilla elastica and Ficus elastica
Ficus benjamina and Ficus lyrata
Bromus japonicus and Ipomoea violacea
Answer: the answer is A
Explanation: i just did it
A breed of mice have fur colors that are white, brown, and speckled brown and white. What type of inheritance does fur color follow? What are the alleles for the speckled brown and white mice?
Answer:
The type of inheritance that the fur color follows is codominance. The alleles of the speckled brown and white mice are WB, where both alleles are expressed.
HELP I WILL GIVE THE CROWN
Answer: chicken and turkey mark me brainliest
Explanation:
____________________ is a series of chemical reactions that convert light energy, water, and carbon dioxide into glucose and oxygen. Photoperiodism Cellular respiration Photosynthesis Pollination
Answer:
Photosynthesis
Explanation:
Oils are ___, or "water hating."
A. hydrophobic
B. hydrophilic
C. polar
Answer:
A
Explanation:It iz wat it iz
Define the following and give an example of each.
Answer:
Omnivore - An animal that eats both plants and animals.
Scavenger - An animal that feeds on dead animals/plants.
Herbivore - An animal that only feeds off of plants.
Answer:
Explanation:
An omnivore is an animal and or person that eats meat and plants.
A scavenger is an animal the feeds on dead organisms.
A herbivore is an animal that only eats plants.
How would you expect the number of births to compare to the number of deaths in a population that was changing?
Kaden is making waves using a string tied to a doorknob. He moves the string up and down and creates four waves, as shown in the picture below.
Kaden wants to create more than four waves using the same piece of string. What could he do to create more waves in the same amount of time?
A.
hold the string tighter as he moves it up and down
B.
pull the string away from the wall before moving it up and down
C.
move the end of the string up and down more quickly
D.
move the end of the string up and down more slowly
Answer:
C
Explanation:
For standing waves, the areas where the amplitude is zero are referred to as nodes while the areas where the amplitude is at the maximum are known as antinodes.
A standing wave derives its feature primarily from the fact that there are certain points along the medium of transmission that are apparently seeing to be standing still with no displacement whatsoever. At the same time, there exist opposing points to the points of zero displacements. These points have a maximum displacement in both the positive and negative directions. While the former is referred to as nodal points, the latter is known as the antinodal points.
A population of rabbits has both brown and white phenotypes controlled
by complete dominance. The gene pool contains 100 B alleles and 125 b
alleles. What is the allele frequency of the dominant trait? *
1. 1.25 b
2. .8 B
3. 155 b
4. 44 B
Answer:
.8 B
Explanation:
Divide the number of dominant alleles with the number of the other alleles
100 ÷ 125 = 0.8
7. An extremely rare X-linked recessive genetic disorder known as Norrie disease affects the eyes
and can lead to blindness and in some cases hearing loss. There are only 400 known cases of
Norrie disease worldwide. Explain why it is virtually impossible for a baby girl to be born with
Norrie disease.
Answer: Girls need to inherit two affected chromosomes to develop the disease, and it may also happen that the affected chromosome is inactivated in the eye (if it has only one)
Explanation:
Norrie's disease is an inherited eye disorder affecting males, which is characterized by abnormal or immature development of the retina (light-sensitive nerve tissue lining the back of the eye) and possible deterioration of the iris (colored part of the eye) and eyeballs. X-linked recessive inheritance is one of the ways in which a genetic trait or condition is passed from parent to child when there are mutations in a gene on the X chromosome from either the father or the mother. Females possess two X chromosomes, while males possess one X and one Y chromosome. In males, the presence of a mutation on the X chromosome causes the disease, since it is the only X they possess. In females, both X chromosomes need to be affected if it is a recessive condition.
So, the disease is inherited in an X-linked recessive manner, which means that almost all affected individuals are male. However, the sons of affected males will not have the mutation since they only inherit the Y chromosome, while all their daughters will be genetic carriers of the mutation because they inherit the affected X chromosome, although without clinical symptoms but being carriers. On the other hand, the mother will pass one of her two X chromosomes (which may or may not be affected) randomly to both her male and female offspring (if they are male, they will be affected and if they are female they will be carriers unless they also inherit an X chromosome from their father). So the only way for females to develop the disease is for their two copies of the gene to be mutated if both parents have the mutation.
But female carriers could be affected by inactivation of their X chromosome with the correct sequence. X chromosome inactivation is a random process that happens separately in individual cells during embryonic development. That is, one cell may inactivate the paternal X chromosome, while others may inactivate the maternal X chromosome. This is because a dosage compensation is necessary, since the Y chromosome in males is not homologous to the X, it does not have the same genes, so if females would express both X chromosomes, they would have twice as many genes as a male. All the descendant cells of each of these original cells will maintain the same pattern of X chromosome inactivation.
In females, one X chromosome is inactivated in each tissue in an arbitrary manner. Then, in addition to having to inherit two affected chromosomes, it may also happen that the affected chromosome is inactivated in the eye (if it has only one).
what is the answer to this
Answer:
to allow implantation of the embryo
the first box is correct
2. Why is it important to have diversity within a population?
a. Better chances of survival in a changing environment
b. Mutations
c. To reach carrying capacity
d. To encourage evolution
Answer: I believe the correct answer is A
Explanation:
What are some short and long term positive benefits of the printing press
short-term and long-term positive contribution of the printing press was and is the ability to disseminate knowledge quickly. Through the printing press, more people could have access to new ideas, and those ideas radically changed the landscape of the Holy Roman Empire.
Which is the best definition of a phylogenetic tree?
Answer: A phylogenetic tree is a branching diagram or a tree showing the evolutionary relationships among various biological species or other entities based upon similarities and differences in their physical or genetic characteristics.
Explanation:hope I helped (can I get braincrown)
Definition: A phylogenetic tree is a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from a common ancestor
Hope this helps!
In sexual fertilization, what is responsible for the genetic composition of the offspring?
A
The offspring receives all of the genetic information from the father.
B.
Each parent provides the offspring with half of their genetic information.
с
The offspring receives all of the genetic information from the mother.
D
Each parent provides the offspring with all of their genetic information.
What is the purpose of mitosis?
a. Growth and repair of body cells
b. Makes new gametes
c. Random generation of new cells in bacteria
d. Only happens during early development
Which best explains why all of the Earth’s freshwater is not available for human use?
Answer:
2.5% of the earth's fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth's surface to be extracted at an affordable cost.
Explanation:
99% of liquid freshwater on Earth is Stored as Ground water
Much of it probably isn't accessible to us Human.
About 71 % of Earth is covered in water, and the Ocean holds most of it but this is salt water, almost all fresh water is stored underground
giving brainliest
Which part of the body connects the bones together and prevents them from rubbing against each other?
Blood
Cartilage
Muscle
Spinal cord
Answer:
b! (cartaladge)
Explanation:
Answer: Cartilage
Explanation: It’s a soft pad in between your joints that prevents them from rubbing together. Usually it is warn out in your years of life.
• Trumpai aprašyk, kaip žuvis plaukioja.
The DNA sequence for Species A is mutated to: GAC-TGA-CTC-CAC-TGG. What is the effect, if any, on the protein produced?
Answer:
Due to the DNA sequence for species A is mutated the amino acid squenced would be changed and a new amino acid would be formed
Explanation:
Help me with this question please !!!
Answer:
C
Explanation: